James Cameron is nothing if not ambitious, and most of the time when he sets his mind to something -- like, ya know, being the first solo diver to visit the deepest part of the ocean -- he usually gets it done.

But after years upon years of planning and delaying and planning and delaying for not one, not two, but three sequels to his ridiculously successful alien love/adventure/environmentalist epic "Avatar," people are understandably starting to wonder whether we're ever going to actually visit the vibrant planet of Pandora again or not.

Cameron gave an update on his progress for the sequels, telling Entertainment Weekly that he is currently in the "process of doing another pass through all three scripts right now."

"The design process is very mature at this point. We’ve been designing for about a year and a half. All the characters, settings and creatures are all pretty much [set]," the triple Oscar-winning director explained.

Cameron also hinted that the hold-up on parts two, three and four of his extraterrestrial saga has a little something to do with the height of the bar he himself set with movie one.

"You have to challenge yourself," he told EW. "Obviously, expectations are going to be very high on these films, especially on 'Avatar 2,' to make sure it wasn’t just some big fluke the first time. So we’ve got to deliver. I’ve created a nice rod for my own back, so they say."

Can't fault the guy for wanting to do it right, right?

All three sequels are expected to film simultaneously, and the release date for "Avatar 2" has been moved to Dec. 25, 2017, barring any further delays.